Drop-wire construction for warpers



Oct- 5 1926 4 1,601,881 A E. RHOADES DROP WIRE CONSTRUCTION FOR WARPERS Filed Feb. 11. 1926 Inventor. Alonzo E. Hhocdes lay/gum! Wk W Anya.

Patented Oct. 5, 1926.

UNITED STATES v ee-1,881 PATENT "orricr...

ALONZO E. Rn'oAnES; or HorEnALE, MASSAC USETTS, A ssrelvon To DRAPER' 003- PORATIQ-N, or HOPEDALE, "MASSACHUSETTS, A CORPORATION or MAINE.

. nRor-wrnn oonsrrnuc'rron non WARPERS.

Application filed February 11, 1926. Serial No. 87,642.

This invention relates to improvements in drop wire constructions for warpers and the principal object thereof is to provide a drop Wire construction in which the drop wires can be readily assembled upon and removed from the drop wire supporting rod.

A further object of the invention is to provide a drop wire construction of this character in which'lateral movement of the assembled drop wires will be prevented.

A further object of the invention is to provide a novel form of flat drop wire adapted to be readily assembled upon a suitable drop wire supporting rod.

Other objects and features of the invent-ion will more fully appear from the following description and the accompanying drawing and will be particularly pointed out in the claims. I

Inasmuch as the present invention relates solely to improvements in the drop wire construction only such portion of a usual warper is illustrated as is required to show the application of the invention thereto.

In the drawing I Fig. 1 is an end View of the upper portion of an end frame of a warper a portion of the frame being broken away to exhibit the relatively movable drop wire bars; a 3

Fig. 2 is a perspective View showing a novel form of drop wire in the act of being assembled upon a drop wire supporting rod; and, H

Fig. 3 is a diagrammatic perspective view showing, one ofthe drop wires in permanently assembled position upon the' drop wire supporting rod and also illustrating the relation thereto of the Jo-operating reciprocating drop wire bars;

Fig. 4 is a detail View, partiallyin sec tion, of the drop wires assembled upon the drop wire bar.

As the invention is applicable to any usual type of warper, a portion of the end frame 1 of a warper is shown in Fig. 1 with the preferred embodiment of the invention mounted thereupon. The end frame 1 has mounted upon it a bracket 2 supportingv an upper guide'roll 3' for the series of warps, in front of which a brackets-also is mounted upon the frame and supports an under guide bar 5 for the warps. A bracket 6, which-desirably is secured to the front side of the frame, is provided with a U-shaped bearing 7 in which the journal 8 0f the rear guide roll 9 is mounted. The warp 10 runs beneath the rear guide roll over the guide bar 5 thence over the front guide roll 8 to the warp beam in the usual manner. I

In Fig. -1 of the drawing a single drop wire andsupporting rod therefor is illus trated, but it will be understood that the illustrated drop wireisbut one of a series of identical drop wires and that ordinarily two banks of drop wires with co-operating relatively movable toothed drop wire bars are employed.

The preferred form of drop wire illustrated comprises a flatsheet metal plate having a shank 11 having at its upper end an eye 12 with an inclined threading slot 13 leading to the lower portion of the eye. The plate or shank has an enlarged, preferably circular, lower end 14 having a central circular aperture 15 and preferably the lower end of the enlarged'lower portion is provided with a slot 16 of substantially less width than the diameter of the aperture 15 leading to the aperture.

The drop wire. supporting rod 17 is of general cylindrical form and of a diameter to fit rotatably within the circular aperture 15 in the lower end of the drop wire and thereby provide a pivotal support for the drop wire. A segment,. or preferably two oppositely disposed segments of the drop 'WlI'G supporting rod are cut away to present a flat face extending longitudinally of the rod throughout the drop wire supporting'section thereof, thus reducing the diam eter of the rod in the lines of different radii and having a maximum reduction along the radii which are perpendicular to Said flat face or faces. The flattened section of the rodthus produced is of such thickness as to enable it to passjthrough the slot 16 leading to the circular aperture in the lower end of the drop wire. It will, therefore. be obvious'that thedrop wire can be readily applied to the rod by causing its slot to pass over the flattened portion of the rod and that the drop wire will be retained upon the rod if the rod is slightly rotated after the drop wires are assembled thereupon. 7

Any suitable means may be provided for securing the drop wire supporting rod in adjusted position either to permit the assembly and removal of the drop wires thereupon, or to prevent the removal of the drop wires after having been assembled there to engage the end frames and hold the drop wire rod in such adjusted position as may be desired either to permit the assembly of the drop wires thereon, or to retain the drop wires upon the red permanently when assembled thereupon.

In the preferred construction illustrated in Figs. 2 and 3 the arm 19 is provided with an enlarged cylindrical portion .20 which fits'upon the end of the drop wire rod and is secured thereto by a set screw 21. A machine screw 22- is threaded through the end portion of the'arm 19 and is adapted to engage the outer face of the end frame 1. By loosening engagement between the end of the machine screw andthe end frame the drop wire supporting rod may be rotated relatively to the drop wires to permit them to be assembled upon the rod or removed therefrom and by slight rotative adjustment of the drop wire rod the drop wires will be prevented from disengagement therefrom. The set screw 22 provides means for locking the drop wire rod in either of such positions.

The usual bar 23, extending transversely between the ends of the warper in proximity to the rear edges of the drop wires, limits the upward swinging movement of the drop wires so that when the flattened section of the drop wire bar is rotated out of registry with the apertures in the drop wires the drop wires cannot be removed.

Spacing washers 24 desirably are placed between adjacent drop wires to prevent any substantial lateral movement of the drop wires and also to insure free pivotal move ment thereof. These washers may be of annular form and permanently assembled upon the drop wire supporting rod and the dropwires assembled upon the rod intermediate of the washers. Thus a great saving of time is made in the replacement of a defective drop wire upon the rod over the usual process in which all the drop Wires and washers from one end of the rod to the defective drop wire must be removed before a new drop wire can be substituted for the defective one and the drop wires and washers thus removed must thereafter be replaced.

Any suitable relatively moving toothed drop wire bar construction may be employed in co-operation with the drop wires of the present invention. The preferred construction illustrated herein comprises a stationary toothed drop wire bar 25, which is secured to a suitable supporting member 26 wire suption of its movement. By this construction' a much quicker operation of the drop wire mechanism is obtained than in previous eon, structions. It will be understood that the embodiment of the invention disclosed herein is of an illustrative character and is not restrictive and that various changes in form, construction and arrangement of parts may be made within the spirit and scope of the following claims. i

Having thus'described the invention, what is claimed as new, and desired to be secured by Letters Patent, is I 1. A drop wire construction for warpers comprising a cylindrical drop wire supporting rod having a longitudinal segment thereof removed to present a flat face, thus reducing the diameter of the rod which is normal to said face, a series of drop wires each having at one end an eye to receive a warp and at its other end a circular aperture to fit rotatably upon said cylindrical rod and provided with a slot leading to said aperture of sufficient widthto permit-the passage of the flattened portion of the rod therethrough, but of less width than the maximum diameter of the rod, whereby the drop wires may be readily assembled upon and removed from said red, but permanentlyretained thereupon by a slight relative rotation between the rod and the assembled drop wires. V

2. Adrop wire construction comprisinga cylindrical drop wire supporting rod from the central drop wire supporting section of which segments have been removed to present oppositely disposed parallel flat faces, a series of drop wires each having at one end an eye to receive a warp and at its other end a circular aperture tofit rotatably uponsaid cylindrical rod and provided with a slot leading to saidaperture of sufficient width to permit the passage of the flattened portion of said rod therethro'ugh, but of less width than themaximum diameter of said rod, whereby the drop wires may be readily assembled upon and removed fromsaid rod, but permanently retained thereupon by a slight relative rotation betweentherod and the assembled drop wires. I i

3 A drop wire construction comprising a cylindrical drop wire supporting rod from the central drop wire supporting section of which segments have been removed to present oppositely disposed parallel flat faces and having vcylindrical ends journalled in the frame of the warper, a series of drop wires each having at one end an eye to receive a warp and at its other end a circular aperture to fit rotatably upon said cylindri cal rod and provided with a slot leading to said aperture of suflicient width to permit the passage of the flattened portion of the rod therethrough, but of less Width than the maximum diameter of said rod, means for limiting the pivotal movement of said drop wires when assembled upon said rod, arms connected to the end portions of said rod and means for securing said arms to said frame in different positions of rotative adjustment of said rod, whereby said rod may be selectively adjusted to permit removal and replacement of the drop Wires, or permanent-- ly to retain the drop wires thereupon.

L. A drop wire construction comprising a cylindrical drop wire supporting rod from the central drop wire supporting section oi which segments hat e been removed to present oppositely disposed parallel flat faces, a series of drop wires each having at one end an eye to receive va warp and at its other end a circular aperture to lit rotatably upon said cylindrical rod and provided with a slot leading to said aperture of sufiicient width to permit the passage of the flattened portion of said rod therethrough, but of less Width than the maximum diameter of said rod, and spacing Washers permanently mounted upon said rod intermediate of adjacent drop wires acting to prevent longitudinal movement of said drop wires.

5. A drop wire for warpers adapted for use with a supporting rod having varying transverse dimensions at a predetermined cross section, comprising a flat shank having at one end an eye to receive a warp and at its opposite end a circular aperture and having in the wall of said aperture a slot of substantially narrower width than the diameter'ot said aperture adapted to pass over the thinner portion of the rod and upon limited; relative, rotative movement to prevent disengagement from said rod.

6. A drop wire adapted for use with a supporting rod having varying transverse dimensions at a predetermined cross section, comprising a flat shank having at its upper end an eye to receive a Warp with a threading slot adjacent said shank leading to said eye and an enlarged circular flattened lower end having a central aperture therethrough and provided with a slot leading to said aperture of substantially less width than the diameter of said slot adapted to pass over the thinner portion of the rod and upon limited, relative, rotative movement to pervent disengagement from said ALONZO E. RHOADES. 

